All outstanding shares of the Issuer's preferred stock were automatically converted into Common Stock upon the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration.

The Convertible Promissory Note, plus interest accrued thereon through the closing of the IPO, automatically converted into Common Stock upon the closing of the IPO, based on the IPO price of $13.00 per share.

The Reporting Person also indirectly beneficially owns 32,758 shares of Common Stock held by Domain Associates, LLC. The Reporting Person is a Managing Member of One Palmer Square Associates VII, LLC, which is the sole general partner of Domain Partners VII, L.P. and DP VII Associates, L.P. and Domain Associates, LLC. Pursuant to Instruction (4)(b)(iv) of Form 4, the Reporting Person has elected to report as indirectly beneficially owned the entire number of securities beneficially owned by each such entity. The Reporting Person disclaims beneficial ownership of any securities, and any proceeds thereof, that exceed his or her pecuniary interest therein and/or that are not actually distributed to him or her.